Migration of Process Instances

1. A computer-implemented method, comprising: receiving first input information describing changes between a first process template and a second process template; receiving second input information characterizing a grouping of the changes; applying the changes to the first process template in a complete grouping, as defined by the second input information, to identify a set of combinations of the first process template and the second process template; and migrating an instance of the first process template to a respective combination of the set of combinations, wherein the respective combination containing complete groups of changes defined by the second input information that affect only a future of the instance at a time of migration.

2. The method of claim 1 , wherein the second input information defines a partial group boundary.

3. The method of claim 2 , wherein the partial group boundary is defined by a set of concurrently navigable activities.

4. The method of claim 3 , further comprising identifying a group boundary extending across the first process template based upon the partial group boundary.

5. The method of claim 4 , further comprising determining, for each group boundary extending across the first process template, a respective combination of the first process template and the second process template.

6. A computer hardware system, comprising: at least one processor, wherein the at least one processor is further configured to initiate and/or perform: receiving first input information describing changes between a first process template and a second process template; receiving second input information characterizing a grouping of the changes; and applying the changes to the first process template in a complete grouping, as defined by the second input information, to identify a set of combinations of the first process template and the second process template; and migrating an instance of the first process template to a respective combination of the set of combinations, wherein the respective combination containing complete groups of changes defined by the second input information that affect only a future of the instance at a time of migration.

7. A computer program product, comprising: a computer usable storage medium having stored therein computer usable program code, which when executed by a computer hardware system, causes the computer hardware system to perform: receiving first input information describing changes between a first process template and a second process template; receiving second input information characterizing a grouping of the changes; and applying the changes to the first process template in a complete grouping, as defined by the second input information, to identify a set of combinations of the first process template and the second process template; and migrating an instance of the first process template to a respective combination of the set of combinations, wherein the respective combination containing complete groups of changes defined by the second input information that affect only a future of the instance at a time of migration, and the computer usable storage medium is not a transitory, propagating signal per se.